地震学报（英文版）2006，Vol.19Issue(1)：100-107,8.
Decomposing InSAR LOS displacement into co-seismic dislocation with a linear interpolation model: A case study of the Kunlun Mountain Ms=8.1 earthquake
Decomposing InSAR LOS displacement into co-seismic dislocation with a linear interpolation model: A case study of the Kunlun Mountain Ms=8.1 earthquake
摘要
Abstract
It has always been a difficult problem to extract horizontal and vertical displacement components from the InSAR LOS (Line of Sight) displacement since the advent of monitoring ground surface deformation with InSAR technique. Having tried to fit the firsthand field investigation data with a least squares model and obtained a preliminary result, this paper, based on the previous field data and the InSAR data, presents a linear cubic interpolation model which well fits the feature of earthquake fracture zone. This model inherits the precision of investigation data;moreover make use of some advantages of the InSAR technique, such as quasi-real time observation, continuous recording and all-weather measurement. Accordingly, by means of the model this paper presents a method to decompose the InSAR slant range co-seismic displacement (i.e. LOS change) into horizontal and vertical displacement components. Approaching the real motion step by step, finally a serial of curves representing the co-seismic horizontal and vertical displacement component along the main earthquake fracture zone are approximately obtained.关键词
InSAR (Interferometry Synthetic Aperture Radar)/least squares fitting/linear interpolation/LOS co-seismic dislocation/Kunlun Mountain Ms=8.1 earthquakeKey words
InSAR (Interferometry Synthetic Aperture Radar)/least squares fitting/linear interpolation/LOS co-seismic dislocation/Kunlun Mountain Ms=8.1 earthquake分类
天文与地球科学引用本文复制引用
..Decomposing InSAR LOS displacement into co-seismic dislocation with a linear interpolation model: A case study of the Kunlun Mountain Ms=8.1 earthquake[J].地震学报（英文版）,2006,19(1):100-107,8.基金项目
National Natural Science Foundation of China (40374013) and Joint Seismological Science Foundation of China (106045). （40374013）
